Dog cooling vests

How cooling vests work

Most cooling vests are evaporative. You soak the vest in cool water, wring it out and put it on your dog. As the water evaporates from the fabric, it draws heat away from the body beneath, similar to how sweat cools people. Dogs sweat very little, so this helps them shed heat on warm days.

Evaporative vests work best in dry heat, where water evaporates quickly. In very humid weather, evaporation slows and the cooling effect is weaker. Re-wet the vest when it dries out, usually every hour or so in hot sun.

Vests, neck wraps and bandanas

A full vest covers the back and sides, which cools a larger area and adds light sun protection on short or thin coats. Mesh and cool-cotton vests are lighter and suit dogs who dislike heavier garments. A reflective vest adds visibility for walks at dawn and dusk, the coolest times of day in summer.

Cooling neck wraps and bandana-style scarves cool the neck, where blood flows close to the surface. They are easy to fit and many dogs barely notice them. They help on a warm walk but cool less of the body than a vest.

Which dogs benefit most

Flat-faced breeds such as Bulldogs, French bulldogs and Pugs struggle to pant efficiently and overheat easily. Dogs with thick or dark coats, senior and overweight dogs, and very active working breeds who do not know when to stop also benefit from extra cooling.

Measure your dog's chest girth and back length, as you would for any garment, and choose a snug but comfortable fit so the fabric stays in contact with the body. A loose vest cools less and can rub.

Cooling gear does not prevent heatstroke on its own

A cooling vest helps, but it cannot make a hot day safe. Walk in the early morning or evening, carry water, rest in the shade and never leave a dog in a parked car. The AKC lists heavy panting, drooling, bright red gums and tongue, weakness and collapse as signs of heatstroke.

If you see these signs, move your dog to shade or air conditioning, wet them with cool, not ice-cold, water and call a vet immediately, even if your dog seems to recover. VCA Animal Hospitals notes that heatstroke can cause internal damage that is not obvious straight away.

This page is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your pet.

Caring for cooling wear

Rinse cooling vests after use to remove salt, dirt and hair, and hang them to dry fully before storing so they do not develop odors or mildew. Follow the care instructions; many can be hand-washed or machine-washed on a gentle cycle.

Check straps and fastenings regularly, and look for wear where the vest rubs under the legs. Replace any vest that has torn or lost its ability to hold water, because a vest that dries out in minutes no longer does much cooling.